An excavator
By installing a dust removal device on the excavator, and utilizing the combination of water tanks, spray systems, and monitoring sensors, the problem of excessive dust during excavator operation has been solved, improving the working environment, extending machine life, and enhancing overall machine stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIUZHOU LIUGONG EXCAVATORS CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-02
AI Technical Summary
When existing tracked hydraulic excavators operate in dry weather, the ripper digging and blasting processes generate a large amount of dust, polluting the air and affecting the driver's visibility and the machine's lifespan.
A dust removal device is installed on the excavator, including a water tank, a high-pressure water pump, pipelines, and a spraying device. The dust concentration is monitored by a monitoring sensor, and the high-pressure water pump is automatically or manually controlled to supply water to the spraying device for dust suppression. The stability of the whole machine is adjusted by the counterweight module in conjunction with the water tank.
It effectively reduces dust, improves the working environment, extends the service life of excavators, and enhances the overall stability of the machine by adjusting the counterweight through the water tank.
Smart Images

Figure CN224314258U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of excavator technology, and in particular to an excavator. Background Technology
[0002] Existing excavators (13), see [link / reference] Figure 5 As shown. Currently, tracked hydraulic excavators, especially those with rippers, are not designed with dust removal systems, which is a drawback.
[0003] 1. During the operation of excavators, especially in dry weather and mining conditions, the ripper will generate a lot of dust and pollute the air when it is digging or blasting.
[0004] 2. Excessive dust can impair the driver's visibility and shorten the lifespan of the machine. Utility Model Content
[0005] The purpose of this invention is to provide an excavator to solve the problem of excessive dust during excavator operation.
[0006] To achieve the above objectives, the present invention provides an excavator, comprising an excavator body and a dust removal device. The excavator body includes a main unit, a counterweight module at the rear end of the main unit, a front end of the main unit rotatably connected to one end of the boom, and the other end of the boom rotatably connected to the stick, the stick having a working end. The dust removal device includes a water tank, a high-pressure water pump, pipelines, and a spraying device. The water tank is located at the rear end of the main unit, and the spraying device is located on the stick. The water tank, the high-pressure water pump, and the spraying device are connected via the pipelines. Under the power provided by the high-pressure water pump, the water tank supplies water to the spraying device through the pipelines. The water tank and the counterweight module have a counterweight cooperation; by adjusting the water volume inside the water tank, the total counterweight of the water tank and the counterweight module can be adjusted.
[0007] Furthermore, the high-pressure water pump is located in the middle of the main unit.
[0008] Furthermore, the pipelines are sequentially arranged along the extension path of the boom.
[0009] Furthermore, the dust removal device also includes a monitoring sensor, which is mounted on the bucket arm and electrically connected to the high-pressure water pump.
[0010] Furthermore, the spraying device and the monitoring sensor are located on the same side wall of the boom, and nozzles are respectively provided on the upper and lower sides of the spraying device.
[0011] Furthermore, a driver's cab is provided on the top of the main unit, and the driver's cab is electrically connected to the high-pressure water pump.
[0012] Furthermore, the water tank is located above the counterweight module, and the water tank is flush with the rear side of the counterweight module.
[0013] Furthermore, the spraying device is mounted and fixed on the boom via a bracket, and the pipeline is mounted and fixed on the boom and the boom via several pipe sleeves.
[0014] Furthermore, the main body of the excavator is a tracked hydraulic excavator, with an engine inside the main body and a tracked walking mechanism at the bottom of the main body.
[0015] Furthermore, the working end is a ripper or a bucket.
[0016] In summary, the application of the technical solution of this utility model has the following beneficial effects: The structure of this utility model is reasonable. (1) By setting up the excavator body and the dust removal device, the excavator body includes the host, the rear end of the host is provided with a counterweight module, the front end of the host is rotatably connected to one end of the boom, the other end of the boom is rotatably connected to the stick, and the stick is provided with a working end; the dust removal device includes a water tank, a high-pressure water pump, a pipeline, and a spraying device. The water tank is set at the rear end of the host, and the spraying device is set on the stick. The water tank is connected to the high-pressure water pump and the spraying device through a pipeline. Under the power provided by the high-pressure water pump, the water tank supplies water to the spraying device through the pipeline; thus, during the excavator's operation, especially in dry weather and mining conditions, when the excavator (such as the model with a ripper) is digging or blasting, the high-pressure water pump starts, and water is transported to the spraying device through the pipeline. The spraying device is used for spraying, dust removal, and dust reduction. (2) By setting up a water tank and a counterweight module with counterweight cooperation, the total counterweight of the water tank and the counterweight module can be adjusted by adjusting the water volume inside the water tank. Thus, in addition to storing water needed for dust suppression, the water tank can also serve as part of the counterweight, while the counterweight module serves as another part of the counterweight. Based on the stability requirements of the entire machine (i.e., the excavator as a whole) during operation, the water volume inside the water tank can be adjusted for balance, and the total counterweight of the water tank and the counterweight module changes accordingly during this process. Therefore, this invention adds a dust removal device, improves the working environment of the excavator, and extends the service life of the excavator; the water tank can adjust the total weight of the counterweight by adjusting the water volume (similar to an adjustable counterweight), thereby improving the overall working stability of the machine. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0018] Figure 2 yes Figure 1 A magnified view of a portion of region A in the middle;
[0019] Figure 3 This is a three-dimensional structural diagram of the host unit of this utility model;
[0020] Figure 4 This is a three-dimensional structural diagram of the working end of this utility model;
[0021] Figure 5 This is a 3D structural diagram of an existing excavator;
[0022] Explanation of reference numerals in the attached drawings: main unit (1), counterweight module (2), boom (3), stick (4), working end (5), water tank (6), high-pressure water pump (7), pipeline (8), sprinkler system (9), monitoring sensor (10), tracked walking mechanism (11), nozzle (12), existing excavator (13). Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, but this does not constitute a limitation on the scope of protection of the present utility model.
[0024] In this utility model, for clearer description, the following explanation is provided: The observer faces the attached... Figure 1 When observing, the left side of the observer is designated as the front, and the right side as the rear. It should be noted that the terms "front end," "rear end," "left side," "right side," "middle," "above," and "below" used in this text indicate orientations or positional relationships based on the accompanying drawings. These are merely for the purpose of clearly describing the present invention and do not indicate or imply that the structure or component referred to must have a specific orientation or be constructed in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used only for the purpose of clarity or simplification of description and should not be construed as indicating or implying relative importance or quantity.
[0025] See Figures 1 to 4This embodiment provides an excavator, including an excavator body and a dust removal device. The excavator body includes a main unit 1, a counterweight module 2 at the rear end of the main unit 1, a front end of the main unit 1 rotatably connected to one end of the boom 3, and the other end of the boom 3 rotatably connected to the stick 4. The stick 4 is provided with a working end 5. The dust removal device includes a water tank 6, a high-pressure water pump 7, a pipeline 8, and a spraying device 9. The water tank 6 is located at the rear end of the main unit 1, and the spraying device 9 is located on the stick 4. The water tank 6 is connected to the high-pressure water pump 7 and the spraying device 9 through the pipeline 8. Under the power provided by the high-pressure water pump 7, the water tank 6 supplies water to the spraying device 9 through the pipeline 8. The water tank 6 and the counterweight module 2 have a counterweight cooperation. By adjusting the water volume inside the water tank 6, the total counterweight of the water tank 6 and the counterweight module 2 can be adjusted. Function: (1) By setting up the excavator body and dust removal device, the excavator body includes the main unit, the rear end of the main unit is equipped with a counterweight module, the front end of the main unit is rotatably connected to one end of the boom, the other end of the boom is rotatably connected to the stick, and the stick is equipped with a working end; the dust removal device includes a water tank, a high-pressure water pump, pipelines, and a spraying device. The water tank is set at the rear end of the main unit, and the spraying device is set on the stick. The water tank is connected to the high-pressure water pump and the spraying device through pipelines. Under the power provided by the high-pressure water pump, the water tank supplies water to the spraying device through the pipelines; thus, during the excavator's operation, especially in dry weather and mining conditions, when the excavator (such as the model with a ripper) is digging or blasting, the high-pressure water pump starts, and water is transported to the spraying device through the pipelines. The spraying device sprays, removes dust, and reduces dust. (2) By setting up a water tank and a counterweight module with counterweight cooperation, the total counterweight of the water tank and the counterweight module can be adjusted by adjusting the water volume inside the water tank. Thus, in addition to storing water needed for dust suppression, the water tank can also serve as part of the counterweight, while the counterweight module serves as another part of the counterweight. Based on the stability requirements of the entire machine (i.e., the excavator as a whole) during operation, the water volume inside the water tank can be adjusted for balance, and the total counterweight of the water tank and the counterweight module changes accordingly during this process. Therefore, this invention adds a dust removal device, improves the working environment of the excavator, and extends the service life of the excavator; the water tank can adjust the total weight of the counterweight by adjusting the water volume (similar to an adjustable counterweight), thereby improving the overall working stability of the machine.
[0026] Specifically, the high-pressure water pump 7 is located in the middle of the main unit 1. Its function is to facilitate the power supply of the high-pressure water pump 7 for water delivery.
[0027] Specifically, the conduit 8 is arranged sequentially along the extension path of the boom 3. Purpose: This arrangement avoids chaotic routing of the conduit 8.
[0028] Specifically, the dust removal device also includes a monitoring sensor 10, which is mounted on the boom 4 and electrically connected to the high-pressure water pump 7. Its function is to monitor the particulate matter content in the air. When the excavator is working, if the monitoring sensor 10 detects that the amount of dust particles in the air exceeds a certain set range, the high-pressure water pump automatically starts, delivering water through pipelines to the spraying device for dust suppression via nozzles. When the monitoring sensor 10 detects that the amount of dust particles in the air is below a certain set range, it automatically cuts off the power, the high-pressure water pump stops working, and the spraying stops, saving water resources and avoiding waste.
[0029] Specifically, the spraying device 9 and the monitoring sensor 10 are located on the same side wall of the boom 4, and nozzles 12 are respectively provided on the upper and lower sides of the spraying device 9. Function: On the same side wall, the spraying device 9 and the monitoring sensor 10 can work together better, and the two nozzles can spray more effectively to remove dust.
[0030] Specifically, the main unit 1 has a cab on top, which is electrically connected to the high-pressure water pump 7. Function: This excavator's dust removal and suppression can be controlled in two modes: manual and automatic. In automatic mode, the working principle is as follows: When the excavator is working, the monitoring sensor 10 detects that the number of dust particles in the air exceeds a certain set range. The high-pressure water pump automatically starts, delivering water through pipelines to the spraying device, where it is sprayed through nozzles to suppress dust. When the monitoring sensor 10 detects that the number of dust particles in the air is below a certain set range, it automatically cuts off the power, and the high-pressure water pump stops working, thus stopping the spraying and saving water resources. When switching to manual mode, the driver can judge the amount of dust and automatically start and stop the high-pressure water pump from the cab.
[0031] Specifically, the water tank 6 is located above the counterweight module 2, and the water tank 6 is flush with the rear side of the counterweight module 2. Function: By aligning the water tank with the counterweight module 2, the appearance of the rear counterweight section becomes more harmonious and compact. Of course, the left and right sides can also be aligned, depending on the need.
[0032] Specifically, the spraying device 9 is mounted and fixed on the boom 4 via a bracket, and the pipeline 8 is mounted and fixed on the boom 3 and the boom 4 via several pipe sleeves. Function: The bracket and pipe sleeves facilitate the installation and fixing of the spraying device 9 and the pipeline 8.
[0033] Specifically, the excavator body is a tracked hydraulic excavator, with an engine inside the main unit 1 and a tracked walking mechanism 11 at the bottom of the main unit 1. Function: To provide a tracked hydraulic excavator with dust suppression and removal functions.
[0034] Specifically, the working end 5 is a ripper or a bucket. Function: When the working end 5 is a ripper, the excavator of this utility model is a model with a ripper; when the working end 5 is a bucket, the excavator of this utility model is a standard model. Of course, the working end 5 can also be replaced with the required structure according to different needs.
[0035] In summary, this invention features dust removal and suppression functions, solving the problem of excessive dust during excavator operation and maintaining a comfortable working environment. The added control system can monitor dust levels and offers both automatic and manual dust suppression modes. This invention can be applied to the 980ER hydraulic excavator model with a ripper. The water tank allows for adjustment of the water volume to regulate the stability of the machine during operation, preventing instability and tail-lifting.
[0036] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.
Claims
1. An excavator comprising an excavator main body and a dust removing device, characterized by: The excavator body includes a main unit (1), a counterweight module (2) at the rear end of the main unit (1), a boom (3) at the front end of the main unit (1) and a stick (4) at the other end of the boom (3) and a working end (5) on the stick (4); the dust removal device includes a water tank (6), a high-pressure water pump (7), pipelines (8), and a spraying device (9), the water tank (6) being located at the rear end of the main unit (1), and the spraying device (9) being located at the rear end of the main unit (1). The water tank (6) is mounted on the boom (4) and is connected to the high-pressure water pump (7) and the spray device (9) through the pipeline (8). Under the power provided by the high-pressure water pump (7), the water tank (6) supplies water to the spray device (9) through the pipeline (8). The water tank (6) and the counterweight module (2) have a counterweight cooperation. By adjusting the water volume inside the water tank (6), the total counterweight of the water tank (6) and the counterweight module (2) can be adjusted.
2. The excavator of claim 1, wherein: The high-pressure water pump (7) is located in the middle of the host (1).
3. The excavator of claim 1, wherein: The pipeline (8) is arranged sequentially along the extension path of the boom (3).
4. The excavator of claim 1, wherein: The dust removal device also includes a monitoring sensor (10), which is mounted on the boom (4) and is electrically connected to the high-pressure water pump (7).
5. The excavator of claim 4, wherein: The spraying device (9) and the monitoring sensor (10) are located on the same side wall of the boom (4), and nozzles (12) are provided on the upper and lower sides of the spraying device (9).
6. The excavator of claim 4, wherein: The main unit (1) is equipped with a driver's cab on its top, and the driver's cab is electrically connected to the high-pressure water pump (7).
7. An excavator according to claim 1, characterized in that: The water tank (6) is located above the counterweight module (2), and the water tank (6) is flush with the rear side of the counterweight module (2).
8. An excavator according to claim 1, characterized in that: The spraying device (9) is fixed to the boom (4) by a bracket, and the pipeline (8) is fixed to the boom (3) and the boom (4) by several pipe sleeves.
9. An excavator according to any one of claims 1 to 8, characterized in that: The main body of the excavator is a tracked hydraulic excavator. The main unit (1) is equipped with an engine inside and a tracked walking mechanism (11) is provided at the bottom of the main unit (1).
10. An excavator according to any one of claims 1 to 8, characterized in that: The working end (5) is a ripper or a bucket.